Finding the Fourth Proportional to 720,799.20, 994,910.49 and 475,962.75
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Solution
The fourth proportional to 720,799.20, 994,910.49 and 475,962.75 is: 656,965.67
Step by Step Solution
- Step 1: Write the proportion equation
720,799.20 : 994,910.49 = 475,962.75 : x - Step 2: Convert to fraction form
720,799.20/994,910.49 = 475,962.75/x - Step 3: Cross multiply
720,799.20x = 994,910.49 × 475,962.75 - Step 4: Simplify right side
720,799.20x = 473,540,332,824.25 - Step 5: Solve for x
x = 473,540,332,824.25/720,799.20 - Step 6: Final answer
x = 656,965.67
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.